20 Most Recent Sony Ericsson K790a Cellular Phone Questions & Answers

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Please New Software install in the Phone Problem will Solved

Try Discharging your flash via Secret Service Menu. Hope it'll save your day. How to find Secret Service Menu ??? Type Sony Ericsson Secret Codes in Google and you'll get all. ;)

Try restriction codes here http://www.superunlockcodes.com/sony-ericsson-k790a/rs12wp9/

http://www.youtube.com/watch?v=N-NC40CPKsA&feature=related Hope I helped Dr Reed

Its a software complaint..so find your nearest Sony Ericsson service dealer and reinstall the software.

- I switch off my k790 and changed a sim card but could not turn it on. Whonever I press the power on button a red light flashes near the infrared port.The same problem occurred whenever I inserted the data cable and my computer does recognised my phone.-

I am presuming your phone is locked. Try the below

If you forgot you can generate master code using your IMEI, which can be viewed by pressing *#06# and keying that in the link mentioned below,,
http://www.unlockme.co.uk/master.php
Hope i`ve helped

yes you can unlock it via usb
with Dultimate unlocker you can unlock your phone.
http://www(dot)d-unlockerserver(dot)com

Its a software problem... Try to see a mobile technician maybe it needs to be reformatted...

check your battery first if your battery weak ,change them with a new type of battery .i hope you understand...for your question,please email me at [email protected]

Phones often carry what is called a "Sim Subsidy Lock." Which in plain words means that the phone is locked to only allow usage with one companies SIM cards.

There is a company called Davinci Team that can unlock the phone for use with another company's SIM card, but they charge about 50 euros for this service.

http://www.fixya.com/support/t188264-sony_ericsson_k800i_wont_turn

U SHOULD TRY ANY OTHER WWW BY SEARCHING IN GOOGLE !

do u have the number stored for more than one entry? It might not work then...

Maybe the Bluetooth transmitter has been damaged. Try giving the phone to a specialized shop.

change another sim and try it or re install the software